1371431 has 2 divisors, whose sum is σ = 1371432. Its totient is φ = 1371430.

The previous prime is 1371397. The next prime is 1371449. The reversal of 1371431 is 1341731.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1371431 - 2¹⁰ = 1370407 is a prime.

It is a super-2 number, since 2×1371431² = 3761645975522, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is equal to p₁₀₅₀₆₈ and since 1371431 and 105068 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1371031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 685715 + 685716.

It is an arithmetic number, because the mean of its divisors is an integer number (685716).

2^1371431 is an apocalyptic number.

1371431 is a deficient number, since it is larger than the sum of its proper divisors (1).

1371431 is an equidigital number, since it uses as much as digits as its factorization.

1371431 is an evil number, because the sum of its binary digits is even.

The product of its digits is 252, while the sum is 20.

The square root of 1371431 is about 1171.0811244316. The cubic root of 1371431 is about 111.1027104389.

The spelling of 1371431 in words is "one million, three hundred seventy-one thousand, four hundred thirty-one".